Combination-tool.



10.342,806. O PATENTED JAN. 29, 1907.` W. MGAUSLAND.

COMBINATION TOOL.

APPLIOATION 'FILED NOV. 4, 1905.

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No. 842,806. Y PATENTLD JAN. 29, 1907. W. MOOAUSLAND.

' COMBINATION TOOL.

APPLICATION FILED NOV. 4, 1905.

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WILLIAM MCCAUSLAND, OF BROOKLYN, NEW YORK.

v,COMBINATION-TOOL.

Speceation of Letters Patent.

Patented Jan. 29, 1907.

Application iiled November 4, 1905. Serial No. 285,898.

T0 all wlw/1t t may concern.'

Be it known that I, WILLIAM MoCAnsLAND, a citizcnof the United States, residing at Brooklyn, in the county of Kings and State pact form of a tool including interchangeable parts adapted for adjustment with the xed parts of the tool to provide for a number of uses.

The invention will be described in the following speciiication, reference being had particularly to the accompanying drawings, in which- Figure 1 is a plan showing the improved tool in use as a T-square. Fig. 2 is a similar view showing it in use as a try-square. Fig. 3 is a similar view showing the tool in use as a protractor. Fig. 4 is a view on the line 4 4 of Fig. 3. Fig. 5 is a side elevation of the angle-gaging plate. Fig. 6 is a section on line 6 6 of Fig. 1. Fig. 7 is a section on line 7 7 of Fig. 2. Fig. 8 is a plan showing the tool in use as a pluinb-level.

Referring to the drawings, my improved tool is constructed in three independent parts, a base 1, an angle-gage plate 2, and a rule or scaled blade 3. The base comprises a plain strip4 of the desired length and width, forming, in eflect, a straight-edge connected at one end with asimilar strip 5, arranged directly at right angles to the strip 4. Projecting about centrally from the strip 4 are two strips 6 and 7, corresponding in width to the strips 4 and 5 and the former meeting the strip 5 at one end. 'v The strips 6 and 7 are arranged at a direct right angle to cach other, said respective strips being provided with webs 8, connected thereto and providing an integral whole. The web 8, adjacent the strip 4 and extending between the strips 5 and 6, is suitably formed to receive a spiritlevel 9, which extends longitudinally of the strip 4 and cooperates with said strip as a base to provide a level. The web 8, joining the ends of strips 4 and 7 is also formed to receive a spirit-level 10, which extends directly at right angles to the strip 4 and in conjunction with the strai ht-edge 5 provides a second level at right angles to the level 9.

The angle-gage plate 2 comprises a curved strip 11 Fig. 8, joined at its terminals by a cross-strip 12, the inner edge of said strip 11 being provided with a suitable scale, as 13. A plate 14 depends centrally from. the crossstrip 12, said plate being provided with a grooveway I15, concentric with the strip 11 of the plate. A gage-pointer 16, Fig. 3, is pivotally and centrally secured to the plate 14, the free end of the pointer being slidably mounted in a grooveway -17 formed inthe inner edge of the strip 11, as clearly shown in Fig. 4. The plate 14 is of less thickness than the strip 12, whereby to provide for the mounting ofthe pointer 16 and its free movement without interference when the parts are connected. The strip 12 is provided with laterally-extending pins 18, designed to be received within openings 20, formed in the webs 8 immediately adjacent the strip 4 of the base, whereby said angle-gage plate may be secured to the base with its curved strip 12 lprojecting in either direction from said base, as illustrated in Figs. 3 and 8. An opening 22 is also formed in the base, being preferably located adjacent the :junction of the strips 6 and 7 of the base, said opening being adapted to receive either of the pins 18 to adapt the tool for use as an angle-gage, as hereinafter described. The blade 3, which is a metallic strip having straight edges, is provided with a central groove or recess 23 and with a plurality of regularly-spacedy holes 24. The blade on eachside of the central groove is suitably scaled at 25. The strip 5 and adjacent web 8 are longitudinally recesscd at 26, Fig. 7, to receive the edge of the blade 3, and centrally of the web I form a transverse opening' 27, in which is mounted a set-screw 28, having the usual milled head 29 projecting below the web. The opposite end of the set-screw is reduced in width, as at 30, for a portion of its length, the free end thereof being formed Vwith a head 31 to seat within and snugly engage the groove 23 in the blade. By this construction the blade may beinserted in the recess 26, and through the engagement of the head 31 of the set-screw with the groove 23 in the blade said blade may be IOO yangles to the strip 4 of the base and approXlturned downward into the groove 26 until I snugly seated against the lower wall thereof, in which position the blade extends at a direct right angle to the strip 4 of the base and at one end thereof, thereby providing a trysquare, as clearly shown in Fig. 2. f The strips 4 and 7 and intermediate web are formed with a recess 32, Fig. 6, extending entirely through said parts and of a length and width to snugly receive the blade 3. A set-screw 33, having a milled head 34, a reduced portion 35, and a head 36 to engage the groove 23 in the blade, is mounted adjacent the recess 32 and adapted to engage and lock the blade in said recess when desired. In this arrangement of the parts the blade projects at right mately centrally oi the length thereof, thereby providing an ordinary T-square, as shown in Fig. 1. It is also obvious that in the arrangement of the parts shown in Figs. 1 and 2 the strips 6 and 7 serve as a radial square, being applicable to any circle on the inside or outside.

With the angle-gage plate in place on thc base the blade 3 is pivotally connected with said plate through the medium of a set-screw 37, engaging the groove 15 and one or the other of the holes or openings 24 in the blade. Alining one edge of the plate 3 with the center of the plate 14, marked to represent the center of the tool, and adjusting the opposite end of said blade with relation to the strip 5 oiE the base the device is adapted for use as a protractor, as the angle between the edge of blade 3 and strip 5 will be indicated upon the scale 13 of the strip 11, as shown in Fig. 3.

By reversing the angle-gage plate so that the curved strip 11 thereof projects beyond the strip 4 in a direction away from the strips 6 and 7 the tool is adapted for use as a plumb-level, as the strip 5 operates as the straight-edge, and the pointer 16will indicate on the scale 13 the angle from the vertical of the surface being gaged, as shown in Fig. 8.

The web 8, extending longitudinally of the strip 7, may be formed with a longitudinallyarra @ed opening for the reception of a suitable scribing-tool 39, the handle or head of which rests beneath and in frictional contact with the strip 7, whereby to prevent its accidental disengagement.

It will thus be noted that the improved tool of my construction comprises primarily but three independent parts and that by the construction and arrangement described the tool is adapted for service as a try-square, set-square, radial square, T-square, depthgage, miter-gage, plumb and level, protractor, registering-bevel when the protractor is attached to the square, bevel and square when the protractor is used alone or when the' stock of the square is attached, a scale-rule formed by the blade of the square,

and a steel straight-edge also formed by the f blade of the square.

Having thus described the invention, what is claimed as new is- 1. A base having a straight -edge and formed with openings adjacent said edge, an angle-gage plate adapted for removable engagement with the base-openings to project beyond said straight-edge in either direction, said plate including a semicircular strip formed with scale-marks, a pointer pivotally supported by the plate with its free end cooperating with the scale-mark, the adjacent edge of the semicircular strip being grooved to receive the pointer.

2. A tool of the class described comprising a base including two strips arranged at a right angle to each other, an angle-gage plate arranged for movable connection with the base, said plate comprising a semicircular scale-strip, and a blade adapted to be pivotally connected to said gage-plate and overlie the scale-marks thereon, whereby the angle between one of the base-strips and the blade may be determined by the registering scalemark on the gage-strip.

3. A tool of the class described comprising a base having two strips arranged at a right angle to each other, one oi' the strips being formed with spaced alined openings, in combination with a gage-plate provided with depending pins to engage the openings in the strip and permit the gage-plate to project in either direction from said strip.

4. A tool of the class described comprising a base having two strips arranged at right angles to eachother, one of the strips being Jformed with spaced alined openings, a gageplate adapted to removably engage said openings, the connection between the gage-plate and strip being arranged to aline one edge of the gage-plate with said strip in one position of said plate.

5. A tool of the class described comprising a base, and a gage-plate removably connected therewith, said plate comprising parallel spaced curved members terminally connected by a cross-strip, a pointer pivotally connected to the cross-strip, the front end of the pointer moving in a recess formed in one of the curved members.

6. A tool oi the class described comprising a base, and a gage-plate removably connected therewith, said plate comprising parallel spaced curved members terminally connected by a cross-strip, a pointer pivotally connected to the cross-strip, the front end of the pointer moving in a recess formed in one of the curved members, in combination with a scaled blade adapted to be removably secured to one of said members.

7. A tool of theclass described comprising a base, and a gage-plate removably connected therewith, said plate comprising parallel IOO IIO

IIS

spaced curved members terminally connectengaging said blade and movable in the slot ed by a crossstrip, a pointer pivotally conin the member. 1o nected to the cross-strip7 the front end of the In testimony whereof I aHiX my signature pointer moving ina recess formed in one of in presence of tWo Witnesses.

the curved members, one of said members WILLIAM MCCAUSLAND. being formed With a slot curving concentric- Witnesses: ally with the curvature of the member, in GEORGE E. ROGERS, E

combination with an edge blade, and means MIKE CREAMER. 

